Narrator: Here's Elsa and Anna in 2013's "Frozen," and ... but even more so in their hair and clothes. Disney Animation had a few movies in between "Frozen" and "Frozen II" to develop their ...

Following is a transcript of the video. Narrator: If you peel back the layers of Rapunzel's hair in "Tangled," you'll see just how complicated animating 3D hair can be. But back then, Disney had ...